Device for sucking and guiding the ends of broken threads in spinning machines



DEVICE FOR SUCkING AND GUIDING THE ENDS 0F BROKEN THREADS IN; SPINNINGMACHINES Fil 9 d Sept. 24. 1948 Oct. '17, 1950 H BARTSCHI 2,525,996

| H 11 .1 1 .1 F ......n..lg I 2 INVENTOR. Hans- Ba'z'risch i memes on.17, 1950 DEVICE FOR SUCKING AND GUIDING THE ENDS 0F BROKEN THREADS INSPINNING MACHINES Hans Barts chi, Togg, St. Gallen, SwitzerlandApplication September 24, 1948, Serial No. 50,954 In Switzerland October9, 1947 lClaim. 1

This invention relates to an arrangement for leading ofi the ends ofthreads at breakages by suction action, particularly for Spinning machines.

Such arrangements are hitherto known in many types but have the defectsof necessitating costly plants or bein disadvantageous in the functionof the plant.

A special disadvantage of the known devices is that on the two sides ofthe spinning machine right hand andleft hand suction pipes that is tosay different suction pipes-are necessary so that their manufacture iscomplicated, because in such a way during the manufacture the individualparts of the pipe must be always held separately and yet mistakes oftenhappen. In addition the control and the packing of the suction pipes isalso difiicult. Usually in the spinning factory spare suction pipes arein stock, and

in consequence of the known construction of these pipes, it is necessaryto hold in stock both right hand and left hand suction pipes.

The arrangement of the suction pipes according to the invention makespossible to work with only one type of suction pipe, that is to say forthe whole spinning machine only right or only left hand suction pipesmay be used so that the said difficulties are eliminated.

In the drawing:

Fig. 1 is a schematic cross section of a double sided spinning machineembodying the features of the present invention.

Fig. 2 illustrates the arrangement of the suction pipes as shown in Fig.1.

The machine has a frame I, drafting rolls 2, creel 3, roving bobbins 4and the other parts for the arrangement, as well as the conduit orchannel 5 with the profile of a half barrel shape, and the suction pipesconnected to the channel.

The roving goes from the roving spoolsor bobbins through thedraitingrolls 2 and the thread from it pass across the L-shape suctionpipes 8 which are supplied with holes according the spacing of thespindles. Upon rupture of the threads the ends leaving the draftingrolls are continually withdrawn with the stream of air entering thesuction holes in the suction pipe guides the thread to the channel, onthe end of which there is a usual exhauster producing the necessaryvacuum, and a filter case for collecting the thread material for re-use.

In accordance with the invention, as shown in Fig. 2, the pipes 6 arearranged on the channel 5 along the spinning machine. 10 is thebeginning and II the end of the channel. Fig. 3 shows the pipes 6 atboth sides of the spinning machine in left-arrangement but if necessarythey may be made on both sides in right-arrangement too. Thesuction-holes I! are spaced according to the spacing of the spindles.

I claim:

In a device for collecting the ends of broken threads in a spinningmachine, a suction conduit, anda series of L-shape suction pipesdetachably connected with the conduit in communication with the interiorof said conduit, said pipes located in the path of the traveling threadsin such way that they are adapted to draw the broken thread ends, andarranged at each side of the conduit so that the pipes project in onelongitudinal direction at one side of the conduit and in the oppositedirection at the other side thereof, the pipes at one side of theconduit being interchangeable with the pipes at the other side of theconduit.

HANS BARTSCHI.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Great Britain of 1905

